...;;热回收量 [gap=685]water heater with single-supply system;the heat pump unit comes with economizer;heat recovery value ...
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heat recovery value
热回收值
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The input power isn't changed much when the heat recovery device is running, on the contrary the EER value becomes bigger and the enthalpy difference heat recovery efficiency reaches 34.12%.
用热回收装置引进新风后基本没有改变空调器的输入功率，相同环境条件下的制冷量增加，EER值增大，焓差热回收效率最高可达到34.12%。
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